MHT CET Chemistry question
The nucleus of an element contains 9 protons. Its valency would be
Answer: (A)
Solution
Z = 9 is fluorine, 1s 2s 2p; it needs one electron to complete its octet, so its valency is 1. Hence the correct option is (a).
The nucleus of an element contains 9 protons. Its valency would be
Z = 9 is fluorine, 1s 2s 2p; it needs one electron to complete its octet, so its valency is 1. Hence the correct option is (a).